diff --git a/requirements.txt b/requirements.txt
index 6ff28d13..005aae4e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ oslo.messaging!=5.25.0,>=5.24.2 # Apache-2.0
 oslo.middleware>=3.27.0 # Apache-2.0
 oslo.policy>=1.23.0 # Apache-2.0
 oslo.rootwrap>=5.0.0 # Apache-2.0
-oslo.serialization>=1.10.0 # Apache-2.0
+oslo.serialization!=2.19.1,>=1.10.0 # Apache-2.0
 oslo.service>=1.10.0 # Apache-2.0
 oslo.utils>=3.20.0 # Apache-2.0
 paramiko>=2.0 # LGPLv2.1+